The object of this thesis is to produce an academically rigorous historical study of the political and religious influences on the Alsatian language theatre. To achieve this end, four research targets were established, designed to produce Conclusions, the evidence of research being listed in the Bibliography. The research targets were each to express a part of the study, being: - Political history and culture of the region. - History and present political situation of the language. - History and politics of the theatre in the language. - Influence of the Church in the theatre in Alsace. Additionally, the thesis includes an analysis five Alsatian plays which I feel embody the spirit of the theatre in the language, as evidence of my assertions in meeting the research targets.